1. Nostr is not for a single community.
2. Zaps are sent liberally by hodlers so it's not true that they are prunes. value for value is real

But you can't earn a living on nostr now because the scale is too small. That has nothing to do with the technology though, it has to do with adoption 

 and attitude I think, so far. in the future it may change. at the moment,the capability is there (creatr) but the audience is lacking.